This beauty lives in the right rear pannier of my wife's Peugeot mixte.
A Lezyne micro floor pump.
Super handy in town. We find ourselves fixing flats for folks every so often on the local streets and trails.
Very durable.
I have the one with the metal bracket around the nozzle support and has the pressure gauge included.
Length is 300 mm or about 11.81 inches.
Pumps tires to high pressure if needed.
edit: There is a frame mount included, but there isn't room on the mixte frameset to mount it.
http://www.lezyne.com/products/hand-...r-Drive-HP/HPG
This one lives in my tool roll.
http://www.lezyne.com/products/co2-s...!co2-flex-hose
http://www.lezyne.com/products/co2-s...tors#!Twin-Kit
The only time I get to use it is fixing flats on the supposedly "tough" Gatorskins I had on my Hollands for a while this summer.